A.Label lbl = Page.FindControl( lblQuantity ) as Label;……

单项选择题You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5. You define the following class：   public class Product {   public decimal Price { get； set； }   }   Your application contains a Web form with a Label control named lblPrice.  You use a StringReader variable named xmlStream to access the following XML fragment： <Product>   <Price>35< Price>   < Product>    You need to display the price of the product from the XML fragment in the lblPrice Label control.  Which code segment should you use？（）

A.A
B.B
C.C
D.D

单项选择题You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5. You create a Web page that contains the following two XML fragments：   01 <script runat= server >   02   03 < script>   04 <asp：ListView ID= ListView1  runat= server    05   DataSourceID= SqlDataSource1    06   07 >   08 <ItemTemplate>   09   <td>   10     <asp：Label ID= LineTotalLabel  runat= server    11       Text=’<%# Eval（ LineTotal ） %>’  >   12   < td>   13 < ItemTemplate>    The SqlDataSource1 object retrieves the data from a Microsoft SQL Server 2005 database table. The database table has a column named LineTotal.  You need to ensure that when the size of the LineTotal column value is greater than seven characters， the column is displayed in red color.  What should you do？（）

A.A
B.B
C.C
D.D

单项选择题You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5. You derive a new validation control from the BaseValidator class.  The validation logic for the control is implemented in the Validate method in the following manner：   protected static bool Validate（string value）   {    ...   }    You need to override the method that validates the value of the related control.  Which override method should you use？（）

A.A
B.B
C.C
D.D

单项选择题You create a Microsoft ASP.NET application by using the Microsoft .NET Framework version 3.5. You create a custom control named OrderForm. You write the following code segment：   public delegate void CheckOrderFormEventHandler（EventArgs e）； private static readonly object CheckOrderFormKey = new object（）；   public event CheckOrderFormEventHandler CheckOrderForm   {   add { Events.AddHandler（CheckOrderFormKey， value）； }  remove { Events.RemoveHandler（CheckOrderFormKey， value）； }  }    You need to provide a method that enables the OrderForm control to raise the CheckOrderForm event.  Which code segment should you use？（）

A.A
B.B
C.C
D.D

单项选择题You are the senior technician at Certkiller.com. You have been instructed to create a MicrosoftASP.NET application using Microsoft .NET Framework v3.5.  You make use of ASP.NET AJAX to create a web form. In order to handle exception from asynchronous postbacks you decide to write the client script code fragment below. You write thefollowing client-script code fragment to handle the exceptions thrown from asynchronouspostbacks. （The line numbers is included for reference purposes） 01 <script type= text javascript > 02 function pageLoad（） 03 { 04  var pageMgr = Sys.WebForms.PageRequestManager.getInstance（）； 05 06 } 07 08 function errorHandler（sender， args） 09 { 10 11 } 12 < script>  You receive an instruction from the network administrator to ensure that the application is able toexecute the criteria below： * You need to ensure that the application makes use of a common client-script function namederrorHandler. * The Label control with an ID named TestError should be updated with the error message.* The browser should not display any message box or Javascript error  How can this be accomplished？（）

A.A
B.B
C.C
D.D